Ring-Opening Polymerization of 1-Methylene-2-phenylcyclopropane Catalyzed by a Pd Complex To Afford Regioregulated Polymers

✍ Scribed by Daisuke Takeuchi; Sunwook Kim; Kohtaro Osakada

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 94 KB
• Volume: 113
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/1521-3757(20010716)113:14<2757::aid-ange2757>3.0.co;2-#

✦ Synopsis

Palladium(ii) complexes with N-donor ligands have recently attracted significant interest as a result of their utility as alkene polymerization catalysis. [1] Strained cyclic olefins such as cyclopropenes and norbornadiene also undergo addition polymerization catalyzed by palladium(ii) complexes. [2] On the other hand, much less effort has been devoted to applying Pd catalysis to polymer synthesis that involves ring opening of the monomer. Herein we report a ring-opening polymerization of 1-methylene-2-phenylcyclopropane that is catalyzed by a Pd complex to give a polymer with a highly tography (SiO 2 , MeOH/CH 2 Cl 2 1/9) to afford 15 (3.7 mg, 62 %). R f 0.14 (MeOH/CH 2 Cl 2 1/9); [a] 25